Allen L L. Hwang, MD

Medicare activity in 2024

Official CMS public-use data for Allen L L. Hwang, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)275 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)187 services
3. Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes (97112)113 services
4. Therapy procedure using manual technique, each 15 minutes (97140)98 services
5. Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)97 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis50%
• Anxiety38%
• Diabetes37%
• Chronic kidney disease36%

Hospitals where Allen L L. Hwang works

Medicare's Facility Affiliation Data lists Allen L L. Hwang at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Lowell General HospitalLowell, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220063
• Merrimack Health Lawrence HospitalLawrence, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220010

Practice locations

Addresses where Allen L L. Hwang is enrolled with Medicare (CMS data updated October 2, 2026).

• 41 Wellman St, Suite 400Lowell, MA 01851 (978) 459‑6737

Group practices

Medicare enrollment lists Allen L L. Hwang as a member of these groups (CMS data updated October 2, 2026).

• Integrated Gastroenterology Consultants, P.C.38 clinicians in the group
• Igc III PLLC3 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in Massachusetts →

Other gastroenterologists in Massachusetts

Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.

• Jacqueline N. Chu, MD
• Michael L. Talanian
• Andrew Plaut, MD
• Mark Salvatore, MD
• David Stockwell Iii, MD
• George L. Barrett, MD
• Joel B. Mason, MD
• Muthoka Mutinga, MD

All gastroenterologists in Massachusetts →

Other clinicians in Integrated Gastroenterology Consultants, P.C.

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Bridget J. Seymour, MD
• Nitin Aggarwal, MD
• Winnie Szeto, MD
• James Connolly, MD
• Richard S. Tilson, MD
• Amanda E. Holmes, PT

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians